39142902 has 16 divisors (see below), whose sum is σ = 78681600. Its totient is φ = 12981672.

The previous prime is 39142877. The next prime is 39142919. The reversal of 39142902 is 20924193.

It is a self number, because there is not a number n which added to its sum of digits gives 39142902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15198 + ... + 17585.

It is an arithmetic number, because the mean of its divisors is an integer number (4917600).

Almost surely, 2^39142902 is an apocalyptic number.

39142902 is an abundant number, since it is smaller than the sum of its proper divisors (39538698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39142902 is a wasteful number, since it uses less digits than its factorization.

39142902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32987.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 39142902 is about 6256.4288535873. The cubic root of 39142902 is about 339.5348367829.

The spelling of 39142902 in words is "thirty-nine million, one hundred forty-two thousand, nine hundred two".